802.1Q-2005.pdf

发布时间：2022-05-29 发布人：admin 分类：说明书资料大小：2.30M 资料格式：pdf 举报版权申诉

cs_21cn-1468927-4744302542982120891.pdf-第1页.png

第1页 / 共303页

cs_21cn-1468927-4744302542982120891.pdf-第2页.png

第2页 / 共303页

cs_21cn-1468927-4744302542982120891.pdf-第3页.png

第3页 / 共303页

cs_21cn-1468927-4744302542982120891.pdf-第4页.png

第4页 / 共303页

cs_21cn-1468927-4744302542982120891.pdf-第5页.png

第5页 / 共303页

cs_21cn-1468927-4744302542982120891.pdf-第6页.png

第6页 / 共303页

cs_21cn-1468927-4744302542982120891.pdf-第7页.png

第7页 / 共303页

cs_21cn-1468927-4744302542982120891.pdf-第8页.png

第8页 / 共303页

IEEE Standard for Local and metropolitan area networks—

Introduction

Notice to users

Errata

Interpretations

Patents

Participants

Historical participants

Figures

Tables

Contents

IEEE Standard for Local and metropolitan area networks—

1. Overview

1.1 Scope

1.2 VLAN aims and benefits

2. Normative references

3. Definitions

4. Abbreviations

5. Conformance

5.1 Requirements terminology

5.2 Protocol Implementation Conformance Statement (PICS)

5.3 VLAN-aware Bridge requirements

5.4 MAC-specific bridging methods

6. Support of the MAC Service in VLANs

6.1 Support of the MAC service

6.2 Preservation of the MAC service

6.3 Quality of service maintenance

6.4 Internal Sublayer Service

6.5 Support of the Internal Sublayer Service by specific MAC procedures

6.6 Enhanced Internal Sublayer Service

6.7 Support of the EISS

6.8 Protocol VLAN classification

7. Principles of network operation

7.1 Network overview

7.2 Use of VLANs

7.3 VLAN topology

7.4 Locating end stations

7.5 Ingress, forwarding, and egress rules

8. Principles of bridge operation

8.1 Bridge operation

8.2 Bridge architecture

8.3 Model of operation

8.4 Port states and the active topology

8.5 Bridge Port Transmit and Receive

8.6 The Forwarding Process

8.7 The Learning Process

8.8 The Filtering Database

8.9 MST configuration information

8.10 Spanning Tree Protocol Entity

8.11 GARP Entities

8.12 Bridge Management Entity

8.13 Addressing

9. Tagged frame format

9.1 Purpose of tagging

9.2 Representation and encoding of tag fields

9.3 Tag format

9.4 Tag Protocol Identifier (TPID) formats

9.5 Tag Protocol Identification

9.6 VLAN Tag Control Information

9.7 Embedded Routing Information Field (E-RIF)

10. Use of GMRP in VLANs

10.1 Definition of a VLAN Context

10.2 GMRP Participants and GIP Contexts

10.3 Context identification in GMRP PDUs

10.4 Default Group filtering behavior and GMRP propagation

11. VLAN topology management

11.1 Static and dynamic VLAN configuration

11.2 GARP VLAN Registration Protocol

11.3 Conformance to GVRP

11.4 Procedural model

12. Bridge management

12.1 Management functions

12.2 Managed objects

12.3 Data types

12.4 Bridge Management Entity

12.5 MAC entities

12.6 Forwarding process

12.7 Filtering Database

12.8 Bridge Protocol Entity

12.9 GARP Entities

12.10 Bridge VLAN managed objects

12.11 GMRP entities

12.12 MST configuration entities

13. The Multiple Spanning Tree Protocol (MSTP)

13.1 Protocol design requirements

13.2 Protocol support requirements

13.3 MSTP overview

13.4 Relationship of MSTP to RSTP

13.5 Modeling an MST Region as a single RSTP Bridge

13.6 STP and RSTP compatibility

13.7 MST Configuration Identification

13.8 MST Regions

13.9 Spanning Tree Priority Vectors

13.10 CIST Priority Vector calculations

13.11 MST Priority Vector calculations

13.12 Port Role assignments

13.13 Stable connectivity

13.14 Communicating Spanning Tree information

13.15 Changing Spanning Tree information

13.16 Changing Port States

13.17 Updating learned station location information

13.18 MSTP and point-to-point links

13.19 Multiple Spanning Tree state machines

13.20 Notational conventions used in state diagrams

13.21 State machine timers

13.22 MSTP performance parameters

13.23 Per-Bridge variables

13.24 Per-Port variables

13.25 State machine conditions and parameters

13.26 State machine procedures

13.27 The Port Timers state machine

13.28 Port Receive state machine

13.29 Port Protocol Migration state machine

13.30 Bridge Detection state machine

13.31 Port Transmit state machine

13.32 Port Information state machine

13.33 Port Role Selection state machine

13.34 Port Role Transitions state machine

13.35 Port State Transition state machine

13.36 Topology Change state machine

13.37 Performance

14. Use of BPDUs by MSTP

14.1 BPDU Structure

14.2 Encoding of parameter types

14.3 BPDU formats and parameters

14.4 Validation of received BPDUs

14.5 Transmission of BPDUs

14.6 Encoding and decoding of STP Configuration, RST, and MST BPDUs

Annex A (normative) PICS proforma

Annex B (informative) Shared and Independent VLAN Learning

Annex C (informative) MAC method dependent aspects of VLAN support

Annex D (informative) Background to VLANs

Annex E (informative) Interoperability considerations

Annex F (informative) Frame translation considerations

Annex G (informative) Priority

Annex H (informative) Bibliography

I E E E Standard for Local and metropolitan area networks Virtual Bridged Local Area Networks IEEE Computer Society Sponsored by the LAN/MAN Standards Committee I E E E 3 Park Avenue New York, NY 10016-5997, USA 19 May 2006 IEEE Std 802.1Q™-2005 (Incorporates IEEE Std 802.1Q-1998, IEEE Std 802.1u™-2001, IEEE Std 802.1v™-2001, and IEEE Std 802.1s™-2002)

Recognized as an American National Standard (ANSI) IEEE Std 802.1Q™-2005 (Incorporates IEEE Std 802.1Q-1998, IEEE Std 802.1u™-2001, IEEE Std 802.1v™-2001, and IEEE Std 802.1s™-2002) IEEE Standard for Local and metropolitan area networks— Virtual Bridged Local Area Networks Sponsor LAN/MAN Standards Committee of the IEEE Computer Society Approved 28 March 2006 American National Standards Institute Approved 7 December 2005 IEEE-SA Standards Board

Abstract: This standard specifies how the MAC Service is supported by Virtual Bridged Local Area Networks, the principles of operation of those networks, and the operation of VLAN-aware Bridges, including management, protocols, and algorithms. Keywords: Bridged Local Area Networks, local area networks (LANs), MAC Bridges, metropolitan area networks, Multiple Spanning Tree Protocol (MSTP), Rapid Spanning Tree Protocol (RSTP), Virtual Bridged Local Area Networks (virtual LANs) The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright © 2006 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 19 May 2006. Printed in the United States of America. IEEE and 802 are registered trademarks in the U.S. Patent & Trademark Office, owned by The Institute of Electrical and Electronics Engineers, Incorporated. Print: PDF: ISBN 0-7381-4876-6 SH95508 ISBN 0-7381-4877-6 SS95508 No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher.

IEEE Standards documents are developed within the IEEE Societies and the Standards Coordinating Committees of the IEEE Standards Association (IEEE-SA) Standards Board. The IEEE develops its standards through a consensus development process, approved by the American National Standards Institute, which brings together volunteers representing varied viewpoints and interests to achieve the final product. Volunteers are not necessarily members of the Institute and serve without compensation. While the IEEE administers the process and establishes rules to promote fairness in the consensus development process, the IEEE does not independently evaluate, test, or verify the accuracy of any of the information contained in its standards. Use of an IEEE Standard is wholly voluntary. The IEEE disclaims liability for any personal injury, property or other damage, of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, or reliance upon this, or any other IEEE Standard document. The IEEE does not warrant or represent the accuracy or content of the material contained herein, and expressly disclaims any express or implied warranty, including any implied warranty of merchantability or fitness for a specific purpose, or that the use of the material contained herein is free from patent infringement. IEEE Standards documents are supplied “AS IS.” The existence of an IEEE Standard does not imply that there are no other ways to produce, test, measure, purchase, market, or provide other goods and services related to the scope of the IEEE Standard. Furthermore, the viewpoint expressed at the time a standard is approved and issued is subject to change brought about through developments in the state of the art and comments received from users of the standard. Every IEEE Standard is subjected to review at least every five years for revision or reaffirmation. When a document is more than five years old and has not been reaffirmed, it is reasonable to conclude that its contents, although still of some value, do not wholly reflect the present state of the art. Users are cautioned to check to determine that they have the latest edition of any IEEE Standard. In publishing and making this document available, the IEEE is not suggesting or rendering professional or other services for, or on behalf of, any person or entity. Nor is the IEEE undertaking to perform any duty owed by any other person or entity to another. Any person utilizing this, and any other IEEE Standards document, should rely upon the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. Interpretations: Occasionally questions may arise regarding the meaning of portions of standards as they relate to specific applications. When the need for interpretations is brought to the attention of IEEE, the Institute will initiate action to prepare appropriate responses. Since IEEE Standards represent a consensus of concerned interests, it is important to ensure that any interpretation has also received the concurrence of a balance of interests. For this reason, IEEE and the members of its societies and Standards Coordinating Committees are not able to provide an instant response to interpretation requests except in those cases where the matter has previously received formal consideration. At lectures, symposia, seminars, or educational courses, an individual presenting information on IEEE standards shall make it clear that his or her views should be considered the personal views of that individual rather than the formal position, explanation, or interpretation of the IEEE. Comments for revision of IEEE Standards are welcome from any interested party, regardless of membership affiliation with IEEE. Suggestions for changes in documents should be in the form of a proposed change of text, together with appropriate supporting comments. Comments on standards and requests for interpretations should be addressed to: Secretary, IEEE-SA Standards Board 445 Hoes Lane Piscataway, NJ 08854 USA NOTE−Attention is called to the possibility that implementation of this standard may require use of subject matter covered by patent rights. By publication of this standard, no position is taken with respect to the existence or validity of any patent rights in connection therewith. The IEEE shall not be responsible for identifying patents for which a license may be required by an IEEE standard or for conducting inquiries into the legal validity or scope of those patents that are brought to its attention. Authorization to photocopy portions of any individual standard for internal or personal use is granted by the Institute of Electrical and Electronics Engineers, Inc., provided that the appropriate fee is paid to Copyright Clearance Center. To arrange for payment of licensing fee, please contact Copyright Clearance Center, Customer Service, 222 Rosewood Drive, Danvers, MA 01923 USA; +1 978 750 8400. Permission to photocopy portions of any individual standard for educational classroom use can also be obtained through the Copyright Clearance Center.

Introduction This introduction is not part of IEEE Std 802.1Q-2005, IEEE Standards for Local and metropolitan area networks—Virtual Bridged Local Area Networks. The MAC Bridge standardization activities that resulted in the development of IEEE Std 802.1DTM-1993 introduced the concept of Filtering Services in Bridged Local Area Networks, and mechanisms whereby filtering information in such LANs may be acquired and held in a Filtering Database. IEEE Std 802.1DTM, 1998 Edition, a revision of IEEE Std 802.1D-1993, extended this concept of Filtering Services to define additional capabilities aimed at a) b) c) d) The provision of expedited traffic capabilities, to support the transmission of time-critical information in a LAN environment. The use of signaled priority information as the basis for identifying expedited classes of traffic. The provision of filtering services that support the dynamic definition and establishment of Groups in a LAN environment, and the filtering of frames by Bridges such that frames addressed to a particular Group are forwarded only on those LAN segments that are required to reach members of that Group. The provision of a Generic Attribute Registration Protocol (GARP) that is used to support the mechanism for providing Group filtering capability and is made available for use in other attribute registration applications. This standard, first published as IEEE Std 802.1Q-1998, makes use of the concepts and mechanisms of LAN Bridging that were introduced by IEEE Std 802.1D, and it defines additional mechanisms that allow the implementation of Virtual Bridged Local Area Networks. The following mechanisms are described: e) Virtual LAN Services. f) g) h) The operation of the Forwarding Process that is required. The structure of the Filtering Database that is required. The nature of the protocols and procedures that are required to provide Virtual LAN services, including the definition of the frame formats used to represent VLAN identification information, and the procedures used to insert and remove VLAN identifiers and the headers in which they are carried. The ability to support end-to-end signaling of priority information regardless of the intrinsic ability of the underlying MAC protocols to signal priority information. The GARP VLAN Registration Protocol (GVRP) that allows distribution and registration of VLAN membership information (the protocol described makes use of the GARP protocol defined in ISO/ IEC 15802-3). The management services and operations that are required to configure and administer networks. i) j) k) three amendments, IEEE Std 802.1uTM-2001, The 2003 Edition of IEEE Std 802.1vTM-2001, and IEEE Std 802.1sTM-2002, into the text of IEEE Std 802.1Q-1998. These amendments describe enhancements to the standard to allow the standard incorporated l) Dynamic Group and VLAN registration to be restricted, based on the contents of static filtering entries. m) VLAN classification according to link layer protocol type. iv Copyright © 2006 IEEE. All rights reserved.

n) Support for VLANs carried over multiple Spanning Tree instances. This revision of the standard is the result of balloting the 2003 Edition, along with maintenance changes to align the text with improvements made to IEEE Std 802.1D. This standard contains state-of-the-art material. The area covered by this standard is undergoing evolution. Revisions are anticipated within the next few years to clarify existing material, to correct possible errors, and to incorporate new related material. Information on the current revision state of this and other IEEE 802 standards may be obtained from Secretary, IEEE-SA Standards Board 445 Hoes Lane Piscataway, NJ 08854 USA Notice to users Errata Errata, if any, for this and all other standards can be accessed at the following URL: http:// standards.ieee.org/reading/ieee/updates/errata/index.html. Users are encouraged to check this URL for errata periodically. Interpretations Current interpretations can be accessed at the following URL: http://standards.ieee.org/reading/ieee/interp/ index.html. Patents Attention is called to the possibility that implementation of this standard may require use of subject matter covered by patent rights. By publication of this standard, no position is taken with respect to the existence or validity of any patent rights in connection therewith. The IEEE shall not be responsible for identifying patents or patent applications for which a license may be required to implement an IEEE standard or for conducting inquiries into the legal validity or scope of those patents that are brought to its attention. A patent holder or patent applicant has filed a statement of assurance that it will grant licenses under these rights without compensation or under reasonable rates and nondiscriminatory, reasonable terms and conditions to applicants desiring to obtain such licenses. The IEEE makes no representation as to the reasonableness of rates, terms, and conditions of the license agreements offered by patent holders or patent applicants. Further information may be obtained from the IEEE Standards Department. Copyright © 2006 IEEE. All rights reserved. v

Participants The following is a list of participants in the Interworking activities of the IEEE 802.1 Working Group. Tony Jeffree, Chair and Editor Mick Seaman, Chair, Interworking Task Group Mike Borza Paul Bottorf Jim Burns Dirceu Cavendish Arjan de Heer Russell Dietz Linda Dunbar Anush Elangovan Hesham Elbakoury David Elie-Dit-Cosaque Don Fedyk Norm Finn Davidi Frattura Anoop Ghanwani Ken Grewal Steve Haddock Takashi Hasegawa Romain Insler Ran Ish-Shalom Michael Johas Teener Hal Keen Yongbum Kim Loren Larsen Yannick Le Goff David Martin John Messenger Dinesh Mohan Bob Moskowitz Don O’Connor Karen O’Donoghue Glenn Parsons Ken Patton Ray Qiu Karen Randall Allyn Romanow Dan Romascanu Jessy V. Rouyer Ali Sajassi Panagiotis Saltsidis Sam Sambasivan John Sauert Koichiro Seto Curtis Simonson Bob Sultan Muneyoshi Suzuki Yoshihiro Suzuki Francois Tallet John Viega Dennis Volpano Manoj Wadekar Ludwig Winkel Michael D. Wright The following members of the individual balloting committee voted on this standard. Balloters may have voted for approval, disapproval, or abstention. Brandon Barry Les Bell Mike Borza Paul Bottorff Jim Burns Dirceu Cavendish Paul Congdom Sharam Davari Arjan de Heer Craig Easley Anush Elangovan Helsham Elbakoury David Elie-Dit-Cosaque Norm Finn David Farttura Gerard Goubert Stephen Haddock Ran Ish-Shalom Atsushi Iwata Neil Jarvis Tony Jeffree Hal Keen Yongbum Kim Shobhan Lakkapragada Bill Lane Loren Larson Yannick Le Goff Marcus Leech John Messenger Dinesh Mohan Bob Moskowitz Don O’Connor Don Pannell Glenn Parsons Karen Randall Allyn Romanow Dan Romascanu Jessy V. Rouyer Ali Sajassi Dolors Sala Sam Sambasivan John Sauer Mick Seaman Koichiro Seto Muneyoshi Suzuki Jonathan Thatcher Geoff Thompson Michel Thorsen Jonathan R. Thatcher John Viega Preeti Vinayakray-Jani John Vollbrecht Dennis Valpano Karl Weber Ludwig Winkel Michael D. Wright vi Copyright © 2006 IEEE. All rights reserved.

分享到：

赞收藏

资料库

802.1Q-2005.pdf

相关推荐

开发技术

热门标签

最新资料